William Howard Taft (1857-1930) was an American politician, jurist, and statesman who served as the 27th president of the United States from 1909 to 1913 and later as the 10th chief justice of the United States from 1921 to 1930 - the only person to hold both offices. He was born on September 15, 1857 in Cincinnati, Ohio into a prominent political family. Taft graduated from Yale University and became a respected judge before entering national service. He served as governor of the Philippines and U.S. secretary of war under President Theodore Roosevelt. As president, Taft pursued antitrust actions, supported civil service reform, and expanded the federal judiciary, but he faced political rifts within the Republican Party. After losing reelection in 1912, he fulfilled his lifelong ambition by leading the Supreme Court, where he modernized its administration and strengthened the judiciary’s role. He served until shortly before his death in 1930.